Memento Mori•Attack

Is Memento Mori good in Slay the Spire 2?

In Slay the Spire 2, Memento Mori is an uncommon attack from the Silent card pool. Its effect: Deal 9 damage. Deals 4 additional damage for each card discarded this turn. The data flags it as a weaker pick, settling at D tier — usually one to pass on unless your deck specifically wants it.

Over 144 tracked runs its win rate sits at 19.0%, 5.1% ahead of the 14.0% all-deck baseline. It sees niche play, included in only 1.2% of eligible runs. Offer data argues the other way: taken 8.6% of the time it is shown, runs that picked it win 22.9% against 27.6% for runs that passed — a -4.4% pick lift across 105 decided runs. Within Silent runs it’s drafted 4.9% of the time, making it a regular part of that class’s decks. Decks that include it run about 1.1 copies on average.

Its standout pairing so far is Calculated Gamble, which lifts its win rate by +18.0% when the two share a deck. On the relic side, Oddly Smooth Stone is its standout companion, worth a +24.8% win-rate swing alongside it. It costs 1 energy, gets upgraded 26.3% of the time, and tends to be picked up near floor 14.

Upgrading the card adds +2 CalculationBase, +1 ExtraDamage to its stat line. Of the runs that drafted it, 27 ended in victory against 115 deaths and 2 abandons. Its most common run-ender is Knowledge Demon Boss, finishing 8.3% of the runs it shows up in. See the synergies, class split, and threats below for the full picture of where Memento Mori fits a Silent deck.

Pick or Skip: Memento Mori

Players take Memento Mori in 8.6% of the 1270 offers it appears in; those runs win 22.9% against 27.6% for runs that passed, a pick lift of -4.4% over 105 decided runs.

Taken 109 times out of 1270 offers.

Pick rate when offered counts offers, not runs: out of every time the game put this in front of a player, how often it was taken. It is not the same number as the share of runs that end up containing it.

Pick lift is the sample-adjusted gap between runs that took the option and runs that passed on it. It is the fair way to rank choices, because raw win rates put the smallest samples on top.

When to Pick Up Memento Mori

Of the 4 pickup windows recorded for Memento Mori, Act 3 is the best: 61.5% across 13 runs.

Win rate of runs by the act Memento Mori entered the deck. Acts that have not reached the sample floor show their run count only.

Best Cards to Pair with Memento Mori

Memento Mori’s strongest card pairings so far are Calculated Gamble (+18.0%), Speedster (+17.1%), and Adrenaline (+16.6%), each shown with the win-rate lift it adds.

Calculated Gamble+18.0%34 runsSpeedster+17.1%23 runsAdrenaline+16.6%15 runsReflex+14.0%23 runsHidden Daggers+14.0%20 runsNoxious Fumes+13.1%25 runs

Based on small co-occurring samples — treat these as early signals, not final verdicts.

Memento Mori Win Rate by Class

Exclusive to the Silent, Memento Mori posts a 19.3% win rate over 142 tracked runs.

The Silentappears in 4.9% of its runs (142 tracked)

Best Relics for Memento Mori

The relics that swing Memento Mori’s win rate the most are Oddly Smooth Stone (+24.8%), Bag of Marbles (+20.6%), and Happy Flower (+19.4%), with each lift shown.

Oddly Smooth Stone+24.8%24 runsBag of Marbles+20.6%15 runsHappy Flower+19.4%21 runsWar Paint+16.1%21 runsRegal Pillow+14.0%20 runsPotion Belt+14.0%17 runs

Based on small co-occurring samples — treat these as early signals, not final verdicts.

Memento Mori Card Details

A 1-energy uncommon attack, Memento Mori is upgraded 26.3% of the time and tends to enter the deck around floor 14.

Deal 9 damage. Deals 4 additional damage for each card discarded this turn.

Upgrade: +2 CalculationBase, +1 ExtraDamage

What Ends Runs with Memento Mori

Runs holding Memento Mori end most often against Knowledge Demon Boss (8.3%), Test Subject Boss (5.6%), and Waterfall Giant Boss (4.9%) — the share of its runs each accounts for is shown.

• Knowledge Demon Boss8.3% of runs
• Test Subject Boss5.6% of runs
• Waterfall Giant Boss4.9% of runs
• The Insatiable Boss4.9% of runs
• Infested Prisms Elite4.9% of runs

See Also

Keep exploring Slay the Spire 2 tier lists and stats below.